← Glossary
Welding Consumable
A material added to the molten pool to improve the properties of the weld metal. For example, silicon increases toughness and prevents porosity.
Physico-Chemical Working Principle
A filler material is introduced into the molten pool to give specific properties. For example, silicon reacts with oxygen and forms a protective layer that prevents porosity.
Metallurgical Relevance & Risks During Welding
Choosing the right filler material is critical for weld quality. Wrong fillers can cause fusion issues or unwanted microstructures, leading to cracks and loss of toughness.
Workshop Practice & Instructions
Pick the right filler based on the base metal and application. For high-carbon steel, for instance, you can add silicon at 0.40 %. Watch the dosing and how you handle the filler.
MetallurgieSchweißtechnik